Stool



FIG. 1 is a front elevational view showing a stool having my new design;

FIG. 2 is a rear elevational view showing the stool;

FIG. 3 is a top plan view of the stool;

FIG. 4 is a bottom plan view of the stool;

FIG. 5 is a left side elevational view of the stool;

FIG. 6 is a right side elevational view of the stool;

FIG. 7 is a right side perspective view of the stool; and,

FIG. 8 is a left side perspective view of the stool. 

The ornamental design for a stool, as shown. 